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Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

...ase; + else + p->c_time_slice = time_slice_base + + ((time_slice_base * + ((p->c_min_bw + p->c_max_bw) / 2)) / + dp->g_min_bw_total); + } +} + +/* + * Allocate the range_bw and range_bw_token to the given group + */ +static void set_range_bw(struct ioband_group *gp, int new_min, int new_max) +{ + struct ioband_device *dp = gp->c_banddev; + struct ioband_group *p; + int token_unit; + + dp->g_min_bw_total += (new_min - gp->c_min_bw); + gp->c_min_bw = new_min; + + dp->g_max_bw_total += (new_max - gp->c_max_bw); + gp->c_max_bw = new_max; + + if (new_min)...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The